{"id":"CVE-2020-14002","state":"PUBLISHED","title":"PuTTY 0.68 through 0.73 has an Observable Discrepancy leading to an information leak in the algorithm negotiation. This allows man-in-the-middle attackers to target initial connect","description":"PuTTY 0.68 through 0.73 has an Observable Discrepancy leading to an information leak in the algorithm negotiation. This allows man-in-the-middle attackers to target initial connection attempts (where no host key for the server has been cached by the client).","publishedAt":"2020-06-29T00:00:00.000Z","updatedAt":"2024-08-04T12:32:14.652Z","severity":null,"assigner":"mitre","products":["n/a n/a"],"affected":[{"vendor":"n/a","product":"n/a","versions":[{"version":"n/a","status":"affected"}]}],"references":["https://www.chiark.greenend.org.uk/~sgtatham/putty/changes.html","https://lists.tartarus.org/pipermail/putty-announce/","https://www.fzi.de/en/news/news/detail-en/artikel/fsa-2020-2-ausnutzung-eines-informationslecks-fuer-gezielte-mitm-angriffe-auf-ssh-clients/","https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/26TACCSQYYCPWAJYNAUIXJGZ5RGORJZV/","https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/JPV4A77EDCT4BTFO5BE26ZH72BG4E5IJ/","https://security.netapp.com/advisory/ntap-20200717-0003/","https://lists.debian.org/debian-lts-announce/2024/04/msg00016.html"],"weaknesses":[],"ingestedAt":"2026-10-29T19:46:33.607Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2020/14xxx/CVE-2020-14002.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.1","cveMetadata":{"cveId":"CVE-2020-14002","state":"PUBLISHED","datePublished":"2020-06-29T00:00:00.000Z","dateUpdated":"2024-08-04T12:32:14.652Z","assignerShortName":"mitre","assignerOrgId":"8254265b-2729-46b6-b9e3-3dfca2d5bfca","dateReserved":"2020-06-10T00:00:00.000Z"},"containers":{"cna":{"descriptions":[{"lang":"en","value":"PuTTY 0.68 through 0.73 has an Observable Discrepancy leading to an information leak in the algorithm negotiation. This allows man-in-the-middle attackers to target initial connection attempts (where no host key for the server has been cached by the client)."}],"affected":[{"vendor":"n/a","product":"n/a","versions":[{"version":"n/a","status":"affected"}]}],"references":[{"url":"https://www.chiark.greenend.org.uk/~sgtatham/putty/changes.html"},{"url":"https://lists.tartarus.org/pipermail/putty-announce/"},{"url":"https://www.fzi.de/en/news/news/detail-en/artikel/fsa-2020-2-ausnutzung-eines-informationslecks-fuer-gezielte-mitm-angriffe-auf-ssh-clients/"},{"url":"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/26TACCSQYYCPWAJYNAUIXJGZ5RGORJZV/","name":"FEDORA-2020-35442ce9b7","tags":["vendor-advisory"]},{"url":"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/JPV4A77EDCT4BTFO5BE26ZH72BG4E5IJ/","name":"FEDORA-2020-f4dba093f1","tags":["vendor-advisory"]},{"url":"https://security.netapp.com/advisory/ntap-20200717-0003/"},{"url":"https://lists.debian.org/debian-lts-announce/2024/04/msg00016.html","name":"[debian-lts-announce] 20240425 [SECURITY] [DLA 3794-1] putty security update","tags":["mailing-list"]}],"problemTypes":[{"descriptions":[{"type":"text","lang":"en","description":"n/a"}]}],"providerMetadata":{"shortName":"mitre","orgId":"8254265b-2729-46b6-b9e3-3dfca2d5bfca","dateUpdated":"2024-04-25T22:06:02.698Z"}},"adp":[{"title":"CVE Program Container","references":[{"url":"https://www.chiark.greenend.org.uk/~sgtatham/putty/changes.html","tags":["x_transferred"]},{"url":"https://lists.tartarus.org/pipermail/putty-announce/","tags":["x_transferred"]},{"url":"https://www.fzi.de/en/news/news/detail-en/artikel/fsa-2020-2-ausnutzung-eines-informationslecks-fuer-gezielte-mitm-angriffe-auf-ssh-clients/","tags":["x_transferred"]},{"url":"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/26TACCSQYYCPWAJYNAUIXJGZ5RGORJZV/","name":"FEDORA-2020-35442ce9b7","tags":["vendor-advisory","x_transferred"]},{"url":"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/JPV4A77EDCT4BTFO5BE26ZH72BG4E5IJ/","name":"FEDORA-2020-f4dba093f1","tags":["vendor-advisory","x_transferred"]},{"url":"https://security.netapp.com/advisory/ntap-20200717-0003/","tags":["x_transferred"]},{"url":"https://lists.debian.org/debian-lts-announce/2024/04/msg00016.html","name":"[debian-lts-announce] 20240425 [SECURITY] [DLA 3794-1] putty security update","tags":["mailing-list","x_transferred"]}],"providerMetadata":{"shortName":"CVE","orgId":"af854a3a-2127-422b-91ae-364da2661108","dateUpdated":"2024-08-04T12:32:14.652Z"}}]}}}